Linux configuration and use of virtual environments virtualenv

1. Installation

sudo apt-get install python-virtualenv

2. Use

To create a virtual environment:

virtualenv [Virtual Environment name]

Example: Virtualenv python27

To activate using a virtual environment:

SOURCE ~/workplace/python27/bin/activate

Installation Library:

Example: Pip Install NumPy

Some libraries such as TensorFlow may have an error when installing: Could not find any downloads that satisfy the requirement TensorFlow, which is generally due to the PIP version being too low, Look at the PIP version number:

Pip--version

Then update the PIP:

Pip Install-u pip

Then re-pip to install the TensorFlow on it.

Use the following command to see which packages are installed in your current environment:

Pip Freeze

Exit the virtual Environment:

Deactivate

To delete a virtual environment:

rmvirtualenv [Virtual Environment name]

Linux configuration and use of virtual environments virtualenv